Numerical Ability - Simplification & Approximation
Simplify: 3³ − 2²
Simplify: 3³ − 2²
easy Q3 of 15
Step-by-Step Solution
Step 1: Evaluate each exponent
3³ = 27 and 2² = 4.Step 2: Subtract the values
27 − 4 = 23.Final Answer:
23 → Option C.Quick Check:
27 − 4 = 23 ✅
Quick Trick: Evaluate exponent expressions first, then do arithmetic.
Common Mistakes:
- Squaring or cubing incorrectly before combining.
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